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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "mozilla/dom/Console.h"
#include "mozilla/dom/ConsoleInstance.h"
#include "mozilla/dom/ConsoleBinding.h"
#include "ConsoleCommon.h"
#include "js/Array.h" // JS::GetArrayLength, JS::NewArrayObject
#include "js/PropertyAndElement.h" // JS_DefineElement, JS_DefineProperty, JS_GetElement
#include "mozilla/dom/BlobBinding.h"
#include "mozilla/dom/BlobImpl.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/ElementBinding.h"
#include "mozilla/dom/Exceptions.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/FunctionBinding.h"
#include "mozilla/dom/Performance.h"
#include "mozilla/dom/PromiseBinding.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/StructuredCloneHolder.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/WorkerRunnable.h"
#include "mozilla/dom/WorkerScope.h"
#include "mozilla/dom/WorkletGlobalScope.h"
#include "mozilla/dom/WorkletImpl.h"
#include "mozilla/dom/WorkletThread.h"
#include "mozilla/dom/RootedDictionary.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/HoldDropJSObjects.h"
#include "mozilla/JSObjectHolder.h"
#include "mozilla/Maybe.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_devtools.h"
#include "mozilla/StaticPrefs_dom.h"
#include "nsCycleCollectionParticipant.h"
#include "nsDOMNavigationTiming.h"
#include "nsGlobalWindow.h"
#include "nsJSUtils.h"
#include "nsNetUtil.h"
#include "xpcpublic.h"
#include "nsContentUtils.h"
#include "nsDocShell.h"
#include "nsProxyRelease.h"
#include "nsReadableUtils.h"
#include "mozilla/ConsoleTimelineMarker.h"
#include "mozilla/TimestampTimelineMarker.h"
#include "nsIConsoleAPIStorage.h"
#include "nsIException.h" // for nsIStackFrame
#include "nsIInterfaceRequestorUtils.h"
#include "nsILoadContext.h"
#include "nsISensitiveInfoHiddenURI.h"
#include "nsISupportsPrimitives.h"
#include "nsIWebNavigation.h"
#include "nsIXPConnect.h"
// The maximum allowed number of concurrent timers per page.
#define MAX_PAGE_TIMERS 10000
// The maximum allowed number of concurrent counters per page.
#define MAX_PAGE_COUNTERS 10000
// The maximum stacktrace depth when populating the stacktrace array used for
// console.trace().
#define DEFAULT_MAX_STACKTRACE_DEPTH 200
// This tags are used in the Structured Clone Algorithm to move js values from
// worker thread to main thread
#define CONSOLE_TAG_BLOB JS_SCTAG_USER_MIN
// This value is taken from ConsoleAPIStorage.js
#define STORAGE_MAX_EVENTS 1000
using namespace mozilla::dom::exceptions;
namespace mozilla::dom {
struct ConsoleStructuredCloneData {
nsCOMPtr<nsIGlobalObject> mGlobal;
nsTArray<RefPtr<BlobImpl>> mBlobs;
};
static void ComposeAndStoreGroupName(JSContext* aCx,
const Sequence<JS::Value>& aData,
nsAString& aName,
nsTArray<nsString>* aGroupStack);
static bool UnstoreGroupName(nsAString& aName, nsTArray<nsString>* aGroupStack);
static bool ProcessArguments(JSContext* aCx, const Sequence<JS::Value>& aData,
Sequence<JS::Value>& aSequence,
Sequence<nsString>& aStyles);
static JS::Value CreateCounterOrResetCounterValue(JSContext* aCx,
const nsAString& aCountLabel,
uint32_t aCountValue);
/**
* Console API in workers uses the Structured Clone Algorithm to move any value
* from the worker thread to the main-thread. Some object cannot be moved and,
* in these cases, we convert them to strings.
* It's not the best, but at least we are able to show something.
*/
class ConsoleCallData final {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ConsoleCallData)
ConsoleCallData(Console::MethodName aName, const nsAString& aString,
Console* aConsole)
: mConsoleID(aConsole->mConsoleID),
mPrefix(aConsole->mPrefix),
mMethodName(aName),
mMicroSecondTimeStamp(JS_Now()),
mStartTimerValue(0),
mStartTimerStatus(Console::eTimerUnknown),
mLogTimerDuration(0),
mLogTimerStatus(Console::eTimerUnknown),
mCountValue(MAX_PAGE_COUNTERS),
mIDType(eUnknown),
mOuterIDNumber(0),
mInnerIDNumber(0),
mMethodString(aString) {}
void SetIDs(uint64_t aOuterID, uint64_t aInnerID) {
MOZ_ASSERT(mIDType == eUnknown);
mOuterIDNumber = aOuterID;
mInnerIDNumber = aInnerID;
mIDType = eNumber;
}
void SetIDs(const nsAString& aOuterID, const nsAString& aInnerID) {
MOZ_ASSERT(mIDType == eUnknown);
mOuterIDString = aOuterID;
mInnerIDString = aInnerID;
mIDType = eString;
}
void SetOriginAttributes(const OriginAttributes& aOriginAttributes) {
mOriginAttributes = aOriginAttributes;
}
void SetAddonId(nsIPrincipal* aPrincipal) {
nsAutoString addonId;
aPrincipal->GetAddonId(addonId);
mAddonId = addonId;
}
void AssertIsOnOwningThread() const {
NS_ASSERT_OWNINGTHREAD(ConsoleCallData);
}
const nsString mConsoleID;
const nsString mPrefix;
const Console::MethodName mMethodName;
int64_t mMicroSecondTimeStamp;
// These values are set in the owning thread and they contain the timestamp of
// when the new timer has started, the name of it and the status of the
// creation of it. If status is false, something went wrong. User
// DOMHighResTimeStamp instead mozilla::TimeStamp because we use
// monotonicTimer from Performance.now();
// They will be set on the owning thread and never touched again on that
// thread. They will be used in order to create a ConsoleTimerStart dictionary
// when console.time() is used.
DOMHighResTimeStamp mStartTimerValue;
nsString mStartTimerLabel;
Console::TimerStatus mStartTimerStatus;
// These values are set in the owning thread and they contain the duration,
// the name and the status of the LogTimer method. If status is false,
// something went wrong. They will be set on the owning thread and never
// touched again on that thread. They will be used in order to create a
// ConsoleTimerLogOrEnd dictionary. This members are set when
// console.timeEnd() or console.timeLog() are called.
double mLogTimerDuration;
nsString mLogTimerLabel;
Console::TimerStatus mLogTimerStatus;
// These 2 values are set by IncreaseCounter or ResetCounter on the owning
// thread and they are used by CreateCounterOrResetCounterValue.
// These members are set when console.count() or console.countReset() are
// called.
nsString mCountLabel;
uint32_t mCountValue;
// The concept of outerID and innerID is misleading because when a
// ConsoleCallData is created from a window, these are the window IDs, but
// when the object is created from a SharedWorker, a ServiceWorker or a
// subworker of a ChromeWorker these IDs are the type of worker and the
// filename of the callee.
// In Console.sys.mjs the ID is 'jsm'.
enum { eString, eNumber, eUnknown } mIDType;
uint64_t mOuterIDNumber;
nsString mOuterIDString;
uint64_t mInnerIDNumber;
nsString mInnerIDString;
OriginAttributes mOriginAttributes;
nsString mAddonId;
const nsString mMethodString;
// Stack management is complicated, because we want to do it as
// lazily as possible. Therefore, we have the following behavior:
// 1) mTopStackFrame is initialized whenever we have any JS on the stack
// 2) mReifiedStack is initialized if we're created in a worker.
// 3) mStack is set (possibly to null if there is no JS on the stack) if
// we're created on main thread.
Maybe<ConsoleStackEntry> mTopStackFrame;
Maybe<nsTArray<ConsoleStackEntry>> mReifiedStack;
nsCOMPtr<nsIStackFrame> mStack;
private:
~ConsoleCallData() = default;
NS_DECL_OWNINGTHREAD;
};
// MainThreadConsoleData instances are created on the Console thread and
// referenced from both main and Console threads in order to provide the same
// object for any ConsoleRunnables relating to the same Console. A Console
// owns a MainThreadConsoleData; MainThreadConsoleData does not keep its
// Console alive.
class MainThreadConsoleData final {
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MainThreadConsoleData);
JSObject* GetOrCreateSandbox(JSContext* aCx, nsIPrincipal* aPrincipal);
// This method must receive aCx and aArguments in the same JS::Compartment.
void ProcessCallData(JSContext* aCx, ConsoleCallData* aData,
const Sequence<JS::Value>& aArguments);
private:
~MainThreadConsoleData() {
NS_ReleaseOnMainThread("MainThreadConsoleData::mStorage",
mStorage.forget());
NS_ReleaseOnMainThread("MainThreadConsoleData::mSandbox",
mSandbox.forget());
}
// All members, except for mRefCnt, are accessed only on the main thread,
// except in MainThreadConsoleData destruction, at which point there are no
// other references.
nsCOMPtr<nsIConsoleAPIStorage> mStorage;
RefPtr<JSObjectHolder> mSandbox;
nsTArray<nsString> mGroupStack;
};
// This base class must be extended for Worker and for Worklet.
class ConsoleRunnable : public StructuredCloneHolderBase {
public:
~ConsoleRunnable() override {
MOZ_ASSERT(!mClonedData.mGlobal,
"mClonedData.mGlobal is set and cleared in a main thread scope");
// Clear the StructuredCloneHolderBase class.
Clear();
}
protected:
JSObject* CustomReadHandler(JSContext* aCx, JSStructuredCloneReader* aReader,
const JS::CloneDataPolicy& aCloneDataPolicy,
uint32_t aTag, uint32_t aIndex) override {
AssertIsOnMainThread();
if (aTag == CONSOLE_TAG_BLOB) {
MOZ_ASSERT(mClonedData.mBlobs.Length() > aIndex);
JS::Rooted<JS::Value> val(aCx);
{
nsCOMPtr<nsIGlobalObject> global = mClonedData.mGlobal;
RefPtr<Blob> blob =
Blob::Create(global, mClonedData.mBlobs.ElementAt(aIndex));
if (!ToJSValue(aCx, blob, &val)) {
return nullptr;
}
}
return &val.toObject();
}
MOZ_CRASH("No other tags are supported.");
return nullptr;
}
bool CustomWriteHandler(JSContext* aCx, JSStructuredCloneWriter* aWriter,
JS::Handle<JSObject*> aObj,
bool* aSameProcessScopeRequired) override {
RefPtr<Blob> blob;
if (NS_SUCCEEDED(UNWRAP_OBJECT(Blob, aObj, blob))) {
if (NS_WARN_IF(!JS_WriteUint32Pair(aWriter, CONSOLE_TAG_BLOB,
mClonedData.mBlobs.Length()))) {
return false;
}
mClonedData.mBlobs.AppendElement(blob->Impl());
return true;
}
if (!JS_ObjectNotWritten(aWriter, aObj)) {
return false;
}
JS::Rooted<JS::Value> value(aCx, JS::ObjectOrNullValue(aObj));
JS::Rooted<JSString*> jsString(aCx, JS::ToString(aCx, value));
if (NS_WARN_IF(!jsString)) {
return false;
}
if (NS_WARN_IF(!JS_WriteString(aWriter, jsString))) {
return false;
}
return true;
}
// Helper method for CallData
void ProcessCallData(JSContext* aCx, MainThreadConsoleData* aConsoleData,
ConsoleCallData* aCallData) {
AssertIsOnMainThread();
ConsoleCommon::ClearException ce(aCx);
JS::Rooted<JS::Value> argumentsValue(aCx);
if (!Read(aCx, &argumentsValue)) {
return;
}
MOZ_ASSERT(argumentsValue.isObject());
JS::Rooted<JSObject*> argumentsObj(aCx, &argumentsValue.toObject());
uint32_t length;
if (!JS::GetArrayLength(aCx, argumentsObj, &length)) {
return;
}
Sequence<JS::Value> values;
SequenceRooter<JS::Value> arguments(aCx, &values);
for (uint32_t i = 0; i < length; ++i) {
JS::Rooted<JS::Value> value(aCx);
if (!JS_GetElement(aCx, argumentsObj, i, &value)) {
return;
}
if (!values.AppendElement(value, fallible)) {
return;
}
}
MOZ_ASSERT(values.Length() == length);
aConsoleData->ProcessCallData(aCx, aCallData, values);
}
// Generic
bool WriteArguments(JSContext* aCx, const Sequence<JS::Value>& aArguments) {
ConsoleCommon::ClearException ce(aCx);
JS::Rooted<JSObject*> arguments(
aCx, JS::NewArrayObject(aCx, aArguments.Length()));
if (NS_WARN_IF(!arguments)) {
return false;
}
JS::Rooted<JS::Value> arg(aCx);
for (uint32_t i = 0; i < aArguments.Length(); ++i) {
arg = aArguments[i];
if (NS_WARN_IF(
!JS_DefineElement(aCx, arguments, i, arg, JSPROP_ENUMERATE))) {
return false;
}
}
JS::Rooted<JS::Value> value(aCx, JS::ObjectValue(*arguments));
return WriteData(aCx, value);
}
// Helper method for Profile calls
void ProcessProfileData(JSContext* aCx, Console::MethodName aMethodName,
const nsAString& aAction) {
AssertIsOnMainThread();
ConsoleCommon::ClearException ce(aCx);
JS::Rooted<JS::Value> argumentsValue(aCx);
bool ok = Read(aCx, &argumentsValue);
mClonedData.mGlobal = nullptr;
if (!ok) {
return;
}
MOZ_ASSERT(argumentsValue.isObject());
JS::Rooted<JSObject*> argumentsObj(aCx, &argumentsValue.toObject());
if (NS_WARN_IF(!argumentsObj)) {
return;
}
uint32_t length;
if (!JS::GetArrayLength(aCx, argumentsObj, &length)) {
return;
}
Sequence<JS::Value> arguments;
for (uint32_t i = 0; i < length; ++i) {
JS::Rooted<JS::Value> value(aCx);
if (!JS_GetElement(aCx, argumentsObj, i, &value)) {
return;
}
if (!arguments.AppendElement(value, fallible)) {
return;
}
}
Console::ProfileMethodMainthread(aCx, aAction, arguments);
}
bool WriteData(JSContext* aCx, JS::Handle<JS::Value> aValue) {
// We use structuredClone to send the JSValue to the main-thread, in order
// to store it into the Console API Service. The consumer will be the
// console panel in the devtools and, because of this, we want to allow the
// cloning of sharedArrayBuffers and WASM modules.
JS::CloneDataPolicy cloneDataPolicy;
cloneDataPolicy.allowIntraClusterClonableSharedObjects();
cloneDataPolicy.allowSharedMemoryObjects();
if (NS_WARN_IF(
!Write(aCx, aValue, JS::UndefinedHandleValue, cloneDataPolicy))) {
// Ignore the message.
return false;
}
return true;
}
ConsoleStructuredCloneData mClonedData;
};
class ConsoleWorkletRunnable : public Runnable, public ConsoleRunnable {
protected:
explicit ConsoleWorkletRunnable(Console* aConsole)
: Runnable("dom::console::ConsoleWorkletRunnable"),
mConsoleData(aConsole->GetOrCreateMainThreadData()) {
WorkletThread::AssertIsOnWorkletThread();
nsCOMPtr<WorkletGlobalScope> global = do_QueryInterface(aConsole->mGlobal);
MOZ_ASSERT(global);
mWorkletImpl = global->Impl();
MOZ_ASSERT(mWorkletImpl);
}
~ConsoleWorkletRunnable() override = default;
protected:
RefPtr<MainThreadConsoleData> mConsoleData;
RefPtr<WorkletImpl> mWorkletImpl;
};
// This runnable appends a CallData object into the Console queue running on
// the main-thread.
class ConsoleCallDataWorkletRunnable final : public ConsoleWorkletRunnable {
public:
static already_AddRefed<ConsoleCallDataWorkletRunnable> Create(
JSContext* aCx, Console* aConsole, ConsoleCallData* aConsoleData,
const Sequence<JS::Value>& aArguments) {
WorkletThread::AssertIsOnWorkletThread();
RefPtr<ConsoleCallDataWorkletRunnable> runnable =
new ConsoleCallDataWorkletRunnable(aConsole, aConsoleData);
if (!runnable->WriteArguments(aCx, aArguments)) {
return nullptr;
}
return runnable.forget();
}
private:
ConsoleCallDataWorkletRunnable(Console* aConsole, ConsoleCallData* aCallData)
: ConsoleWorkletRunnable(aConsole), mCallData(aCallData) {
WorkletThread::AssertIsOnWorkletThread();
MOZ_ASSERT(aCallData);
aCallData->AssertIsOnOwningThread();
const WorkletLoadInfo& loadInfo = mWorkletImpl->LoadInfo();
mCallData->SetIDs(loadInfo.OuterWindowID(), loadInfo.InnerWindowID());
}
~ConsoleCallDataWorkletRunnable() override = default;
NS_IMETHOD Run() override {
AssertIsOnMainThread();
AutoJSAPI jsapi;
jsapi.Init();
JSContext* cx = jsapi.cx();
JSObject* sandbox =
mConsoleData->GetOrCreateSandbox(cx, mWorkletImpl->Principal());
JS::Rooted<JSObject*> global(cx, sandbox);
if (NS_WARN_IF(!global)) {
return NS_ERROR_FAILURE;
}
// The CreateSandbox call returns a proxy to the actual sandbox object. We
// don't need a proxy here.
global = js::UncheckedUnwrap(global);
JSAutoRealm ar(cx, global);
// We don't need to set a parent object in mCallData bacause there are not
// DOM objects exposed to worklet.
ProcessCallData(cx, mConsoleData, mCallData);
return NS_OK;
}
RefPtr<ConsoleCallData> mCallData;
};
class ConsoleWorkerRunnable : public WorkerProxyToMainThreadRunnable,
public ConsoleRunnable {
public:
explicit ConsoleWorkerRunnable(Console* aConsole)
: mConsoleData(aConsole->GetOrCreateMainThreadData()) {}
~ConsoleWorkerRunnable() override = default;
bool Dispatch(JSContext* aCx, const Sequence<JS::Value>& aArguments) {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if (NS_WARN_IF(!WriteArguments(aCx, aArguments))) {
RunBackOnWorkerThreadForCleanup(workerPrivate);
return false;
}
if (NS_WARN_IF(!WorkerProxyToMainThreadRunnable::Dispatch(workerPrivate))) {
// RunBackOnWorkerThreadForCleanup() will be called by
// WorkerProxyToMainThreadRunnable::Dispatch().
return false;
}
return true;
}
protected:
void RunOnMainThread(WorkerPrivate* aWorkerPrivate) override {
MOZ_ASSERT(aWorkerPrivate);
AssertIsOnMainThread();
// Walk up to our containing page
WorkerPrivate* wp = aWorkerPrivate;
while (wp->GetParent()) {
wp = wp->GetParent();
}
nsCOMPtr<nsPIDOMWindowInner> window = wp->GetWindow();
if (!window) {
RunWindowless(aWorkerPrivate);
} else {
RunWithWindow(aWorkerPrivate, window);
}
}
void RunWithWindow(WorkerPrivate* aWorkerPrivate,
nsPIDOMWindowInner* aWindow) {
MOZ_ASSERT(aWorkerPrivate);
AssertIsOnMainThread();
AutoJSAPI jsapi;
MOZ_ASSERT(aWindow);
RefPtr<nsGlobalWindowInner> win = nsGlobalWindowInner::Cast(aWindow);
if (NS_WARN_IF(!jsapi.Init(win))) {
return;
}
nsCOMPtr<nsPIDOMWindowOuter> outerWindow = aWindow->GetOuterWindow();
if (NS_WARN_IF(!outerWindow)) {
return;
}
RunConsole(jsapi.cx(), aWindow->AsGlobal(), aWorkerPrivate, outerWindow,
aWindow);
}
void RunWindowless(WorkerPrivate* aWorkerPrivate) {
MOZ_ASSERT(aWorkerPrivate);
AssertIsOnMainThread();
WorkerPrivate* wp = aWorkerPrivate;
while (wp->GetParent()) {
wp = wp->GetParent();
}
MOZ_ASSERT(!wp->GetWindow());
AutoJSAPI jsapi;
jsapi.Init();
JSContext* cx = jsapi.cx();
JS::Rooted<JSObject*> global(
cx, mConsoleData->GetOrCreateSandbox(cx, wp->GetPrincipal()));
if (NS_WARN_IF(!global)) {
return;
}
// The GetOrCreateSandbox call returns a proxy to the actual sandbox object.
// We don't need a proxy here.
global = js::UncheckedUnwrap(global);
JSAutoRealm ar(cx, global);
nsCOMPtr<nsIGlobalObject> globalObject = xpc::NativeGlobal(global);
if (NS_WARN_IF(!globalObject)) {
return;
}
RunConsole(cx, globalObject, aWorkerPrivate, nullptr, nullptr);
}
void RunBackOnWorkerThreadForCleanup(WorkerPrivate* aWorkerPrivate) override {
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
}
// This method is called in the main-thread.
virtual void RunConsole(JSContext* aCx, nsIGlobalObject* aGlobal,
WorkerPrivate* aWorkerPrivate,
nsPIDOMWindowOuter* aOuterWindow,
nsPIDOMWindowInner* aInnerWindow) = 0;
bool ForMessaging() const override { return true; }
RefPtr<MainThreadConsoleData> mConsoleData;
};
// This runnable appends a CallData object into the Console queue running on
// the main-thread.
class ConsoleCallDataWorkerRunnable final : public ConsoleWorkerRunnable {
public:
ConsoleCallDataWorkerRunnable(Console* aConsole, ConsoleCallData* aCallData)
: ConsoleWorkerRunnable(aConsole), mCallData(aCallData) {
MOZ_ASSERT(aCallData);
mCallData->AssertIsOnOwningThread();
}
private:
~ConsoleCallDataWorkerRunnable() override = default;
void RunConsole(JSContext* aCx, nsIGlobalObject* aGlobal,
WorkerPrivate* aWorkerPrivate,
nsPIDOMWindowOuter* aOuterWindow,
nsPIDOMWindowInner* aInnerWindow) override {
MOZ_ASSERT(aGlobal);
MOZ_ASSERT(aWorkerPrivate);
AssertIsOnMainThread();
// The windows have to run in parallel.
MOZ_ASSERT(!!aOuterWindow == !!aInnerWindow);
if (aOuterWindow) {
mCallData->SetIDs(aOuterWindow->WindowID(), aInnerWindow->WindowID());
} else {
ConsoleStackEntry frame;
if (mCallData->mTopStackFrame) {
frame = *mCallData->mTopStackFrame;
}
nsString id = frame.mFilename;
nsString innerID;
if (aWorkerPrivate->IsSharedWorker()) {
innerID = u"SharedWorker"_ns;
} else if (aWorkerPrivate->IsServiceWorker()) {
innerID = u"ServiceWorker"_ns;
// Use scope as ID so the webconsole can decide if the message should
// show up per tab
CopyASCIItoUTF16(aWorkerPrivate->ServiceWorkerScope(), id);
} else {
innerID = u"Worker"_ns;
}
mCallData->SetIDs(id, innerID);
}
mClonedData.mGlobal = aGlobal;
ProcessCallData(aCx, mConsoleData, mCallData);
mClonedData.mGlobal = nullptr;
}
RefPtr<ConsoleCallData> mCallData;
};
// This runnable calls ProfileMethod() on the console on the main-thread.
class ConsoleProfileWorkletRunnable final : public ConsoleWorkletRunnable {
public:
static already_AddRefed<ConsoleProfileWorkletRunnable> Create(
JSContext* aCx, Console* aConsole, Console::MethodName aName,
const nsAString& aAction, const Sequence<JS::Value>& aArguments) {
WorkletThread::AssertIsOnWorkletThread();
RefPtr<ConsoleProfileWorkletRunnable> runnable =
new ConsoleProfileWorkletRunnable(aConsole, aName, aAction);
if (!runnable->WriteArguments(aCx, aArguments)) {
return nullptr;
}
return runnable.forget();
}
private:
ConsoleProfileWorkletRunnable(Console* aConsole, Console::MethodName aName,
const nsAString& aAction)
: ConsoleWorkletRunnable(aConsole), mName(aName), mAction(aAction) {
MOZ_ASSERT(aConsole);
}
NS_IMETHOD Run() override {
AssertIsOnMainThread();
AutoJSAPI jsapi;
jsapi.Init();
JSContext* cx = jsapi.cx();
JSObject* sandbox =
mConsoleData->GetOrCreateSandbox(cx, mWorkletImpl->Principal());
JS::Rooted<JSObject*> global(cx, sandbox);
if (NS_WARN_IF(!global)) {
return NS_ERROR_FAILURE;
}
// The CreateSandbox call returns a proxy to the actual sandbox object. We
// don't need a proxy here.
global = js::UncheckedUnwrap(global);
JSAutoRealm ar(cx, global);
// We don't need to set a parent object in mCallData bacause there are not
// DOM objects exposed to worklet.
ProcessProfileData(cx, mName, mAction);
return NS_OK;
}
Console::MethodName mName;
nsString mAction;
};
// This runnable calls ProfileMethod() on the console on the main-thread.
class ConsoleProfileWorkerRunnable final : public ConsoleWorkerRunnable {
public:
ConsoleProfileWorkerRunnable(Console* aConsole, Console::MethodName aName,
const nsAString& aAction)
: ConsoleWorkerRunnable(aConsole), mName(aName), mAction(aAction) {
MOZ_ASSERT(aConsole);
}
private:
void RunConsole(JSContext* aCx, nsIGlobalObject* aGlobal,
WorkerPrivate* aWorkerPrivate,
nsPIDOMWindowOuter* aOuterWindow,
nsPIDOMWindowInner* aInnerWindow) override {
AssertIsOnMainThread();
MOZ_ASSERT(aGlobal);
mClonedData.mGlobal = aGlobal;
ProcessProfileData(aCx, mName, mAction);
mClonedData.mGlobal = nullptr;
}
Console::MethodName mName;
nsString mAction;
};
NS_IMPL_CYCLE_COLLECTION_CLASS(Console)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Console)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mConsoleEventNotifier)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mDumpFunction)
NS_IMPL_CYCLE_COLLECTION_UNLINK_WEAK_REFERENCE
tmp->Shutdown();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Console)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mConsoleEventNotifier)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDumpFunction)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(Console)
for (uint32_t i = 0; i < tmp->mArgumentStorage.length(); ++i) {
tmp->mArgumentStorage[i].Trace(aCallbacks, aClosure);
}
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(Console)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Console)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Console)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_END
/* static */
already_AddRefed<Console> Console::Create(JSContext* aCx,
nsPIDOMWindowInner* aWindow,
ErrorResult& aRv) {
MOZ_ASSERT_IF(NS_IsMainThread(), aWindow);
uint64_t outerWindowID = 0;
uint64_t innerWindowID = 0;
if (aWindow) {
innerWindowID = aWindow->WindowID();
// Without outerwindow any console message coming from this object will not
// shown in the devtools webconsole. But this should be fine because
// probably we are shutting down, or the window is CCed/GCed.
nsPIDOMWindowOuter* outerWindow = aWindow->GetOuterWindow();
if (outerWindow) {
outerWindowID = outerWindow->WindowID();
}
}
RefPtr<Console> console = new Console(aCx, nsGlobalWindowInner::Cast(aWindow),
outerWindowID, innerWindowID);
console->Initialize(aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return console.forget();
}
/* static */
already_AddRefed<Console> Console::CreateForWorklet(JSContext* aCx,
nsIGlobalObject* aGlobal,
uint64_t aOuterWindowID,
uint64_t aInnerWindowID,
ErrorResult& aRv) {
WorkletThread::AssertIsOnWorkletThread();
RefPtr<Console> console =
new Console(aCx, aGlobal, aOuterWindowID, aInnerWindowID);
console->Initialize(aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
return console.forget();
}
Console::Console(JSContext* aCx, nsIGlobalObject* aGlobal,
uint64_t aOuterWindowID, uint64_t aInnerWindowID)
: mGlobal(aGlobal),
mOuterID(aOuterWindowID),
mInnerID(aInnerWindowID),
mDumpToStdout(false),
mChromeInstance(false),
mMaxLogLevel(ConsoleLogLevel::All),
mStatus(eUnknown),
mCreationTimeStamp(TimeStamp::Now()) {
// Let's enable the dumping to stdout by default for chrome.
if (nsContentUtils::ThreadsafeIsSystemCaller(aCx)) {
mDumpToStdout = StaticPrefs::devtools_console_stdout_chrome();
} else {
mDumpToStdout = StaticPrefs::devtools_console_stdout_content();
}
mozilla::HoldJSObjects(this);
}
Console::~Console() {
AssertIsOnOwningThread();
Shutdown();
mozilla::DropJSObjects(this);
}
void Console::Initialize(ErrorResult& aRv) {
AssertIsOnOwningThread();
MOZ_ASSERT(mStatus == eUnknown);
if (NS_IsMainThread()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (NS_WARN_IF(!obs)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
if (mInnerID) {
aRv = obs->AddObserver(this, "inner-window-destroyed", true);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
}
aRv = obs->AddObserver(this, "memory-pressure", true);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
}
mStatus = eInitialized;
}
void Console::Shutdown() {
AssertIsOnOwningThread();
if (mStatus == eUnknown || mStatus == eShuttingDown) {
return;
}
if (NS_IsMainThread()) {
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->RemoveObserver(this, "inner-window-destroyed");
obs->RemoveObserver(this, "memory-pressure");
}
}
mTimerRegistry.Clear();
mCounterRegistry.Clear();
ClearStorage();
mCallDataStorage.Clear();
mStatus = eShuttingDown;
}
NS_IMETHODIMP
Console::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) {
AssertIsOnMainThread();
if (!strcmp(aTopic, "inner-window-destroyed")) {
nsCOMPtr<nsISupportsPRUint64> wrapper = do_QueryInterface(aSubject);
NS_ENSURE_TRUE(wrapper, NS_ERROR_FAILURE);
uint64_t innerID;
nsresult rv = wrapper->GetData(&innerID);
NS_ENSURE_SUCCESS(rv, rv);
if (innerID == mInnerID) {
Shutdown();
}
return NS_OK;
}
if (!strcmp(aTopic, "memory-pressure")) {
ClearStorage();
return NS_OK;
}
return NS_OK;
}
void Console::ClearStorage() {
mCallDataStorage.Clear();
mArgumentStorage.clearAndFree();
}
#define METHOD(name, string) \
/* static */ void Console::name(const GlobalObject& aGlobal, \
const Sequence<JS::Value>& aData) { \
Method(aGlobal, Method##name, nsLiteralString(string), aData); \
}
METHOD(Log, u"log")
METHOD(Info, u"info")
METHOD(Warn, u"warn")
METHOD(Error, u"error")
METHOD(Exception, u"exception")
METHOD(Debug, u"debug")
METHOD(Table, u"table")
METHOD(Trace, u"trace")
// Displays an interactive listing of all the properties of an object.
METHOD(Dir, u"dir");
METHOD(Dirxml, u"dirxml");
METHOD(Group, u"group")
METHOD(GroupCollapsed, u"groupCollapsed")
#undef METHOD
/* static */
void Console::Clear(const GlobalObject& aGlobal) {
const Sequence<JS::Value> data;
Method(aGlobal, MethodClear, u"clear"_ns, data);
}
/* static */
void Console::GroupEnd(const GlobalObject& aGlobal) {
const Sequence<JS::Value> data;
Method(aGlobal, MethodGroupEnd, u"groupEnd"_ns, data);
}
/* static */
void Console::Time(const GlobalObject& aGlobal, const nsAString& aLabel) {
StringMethod(aGlobal, aLabel, Sequence<JS::Value>(), MethodTime, u"time"_ns);
}
/* static */
void Console::TimeEnd(const GlobalObject& aGlobal, const nsAString& aLabel) {
StringMethod(aGlobal, aLabel, Sequence<JS::Value>(), MethodTimeEnd,
u"timeEnd"_ns);
}
/* static */
void Console::TimeLog(const GlobalObject& aGlobal, const nsAString& aLabel,
const Sequence<JS::Value>& aData) {
StringMethod(aGlobal, aLabel, aData, MethodTimeLog, u"timeLog"_ns);
}
/* static */
void Console::StringMethod(const GlobalObject& aGlobal, const nsAString& aLabel,
const Sequence<JS::Value>& aData,
MethodName aMethodName,
const nsAString& aMethodString) {
RefPtr<Console> console = GetConsole(aGlobal);
if (!console) {
return;
}
console->StringMethodInternal(aGlobal.Context(), aLabel, aData, aMethodName,
aMethodString);
}
void Console::StringMethodInternal(JSContext* aCx, const nsAString& aLabel,
const Sequence<JS::Value>& aData,
MethodName aMethodName,
const nsAString& aMethodString) {
ConsoleCommon::ClearException ce(aCx);
Sequence<JS::Value> data;
SequenceRooter<JS::Value> rooter(aCx, &data);
JS::Rooted<JS::Value> value(aCx);
if (!dom::ToJSValue(aCx, aLabel, &value)) {
return;
}
if (!data.AppendElement(value, fallible)) {
return;
}
for (uint32_t i = 0; i < aData.Length(); ++i) {
if (!data.AppendElement(aData[i], fallible)) {
return;
}
}
MethodInternal(aCx, aMethodName, aMethodString, data);
}
/* static */
void Console::TimeStamp(const GlobalObject& aGlobal,
const JS::Handle<JS::Value> aData) {
JSContext* cx = aGlobal.Context();
ConsoleCommon::ClearException ce(cx);
Sequence<JS::Value> data;
SequenceRooter<JS::Value> rooter(cx, &data);
if (aData.isString() && !data.AppendElement(aData, fallible)) {
return;
}
Method(aGlobal, MethodTimeStamp, u"timeStamp"_ns, data);
}
/* static */
void Console::Profile(const GlobalObject& aGlobal,
const Sequence<JS::Value>& aData) {
ProfileMethod(aGlobal, MethodProfile, u"profile"_ns, aData);
}
/* static */
void Console::ProfileEnd(const GlobalObject& aGlobal,
const Sequence<JS::Value>& aData) {
ProfileMethod(aGlobal, MethodProfileEnd, u"profileEnd"_ns, aData);
}
/* static */
void Console::ProfileMethod(const GlobalObject& aGlobal, MethodName aName,
const nsAString& aAction,
const Sequence<JS::Value>& aData) {
RefPtr<Console> console = GetConsole(aGlobal);
if (!console) {
return;
}
JSContext* cx = aGlobal.Context();
console->ProfileMethodInternal(cx, aName, aAction, aData);
}
void Console::ProfileMethodInternal(JSContext* aCx, MethodName aMethodName,
const nsAString& aAction,
const Sequence<JS::Value>& aData) {
if (!ShouldProceed(aMethodName)) {
return;
}
MaybeExecuteDumpFunction(aCx, aAction, aData, nullptr);
if (WorkletThread::IsOnWorkletThread()) {
RefPtr<ConsoleProfileWorkletRunnable> runnable =
ConsoleProfileWorkletRunnable::Create(aCx, this, aMethodName, aAction,
aData);
if (!runnable) {
return;
}
NS_DispatchToMainThread(runnable.forget());
return;
}
if (!NS_IsMainThread()) {
// Here we are in a worker thread.
RefPtr<ConsoleProfileWorkerRunnable> runnable =
new ConsoleProfileWorkerRunnable(this, aMethodName, aAction);
runnable->Dispatch(aCx, aData);
return;
}
ProfileMethodMainthread(aCx, aAction, aData);
}
// static
void Console::ProfileMethodMainthread(JSContext* aCx, const nsAString& aAction,
const Sequence<JS::Value>& aData) {
MOZ_ASSERT(NS_IsMainThread());
ConsoleCommon::ClearException ce(aCx);
RootedDictionary<ConsoleProfileEvent> event(aCx);
event.mAction = aAction;
event.mChromeContext = nsContentUtils::ThreadsafeIsSystemCaller(aCx);
event.mArguments.Construct();
Sequence<JS::Value>& sequence = event.mArguments.Value();
for (uint32_t i = 0; i < aData.Length(); ++i) {
if (!sequence.AppendElement(aData[i], fallible)) {
return;
}
}
JS::Rooted<JS::Value> eventValue(aCx);
if (!ToJSValue(aCx, event, &eventValue)) {
return;
}
JS::Rooted<JSObject*> eventObj(aCx, &eventValue.toObject());
MOZ_ASSERT(eventObj);
if (!JS_DefineProperty(aCx, eventObj, "wrappedJSObject", eventValue,
JSPROP_ENUMERATE)) {
return;
}
nsIXPConnect* xpc = nsContentUtils::XPConnect();
nsCOMPtr<nsISupports> wrapper;
const nsIID& iid = NS_GET_IID(nsISupports);
if (NS_FAILED(xpc->WrapJS(aCx, eventObj, iid, getter_AddRefs(wrapper)))) {
return;
}
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(wrapper, "console-api-profiler", nullptr);
}
}
/* static */
void Console::Assert(const GlobalObject& aGlobal, bool aCondition,
const Sequence<JS::Value>& aData) {
if (!aCondition) {
Method(aGlobal, MethodAssert, u"assert"_ns, aData);
}
}
/* static */
void Console::Count(const GlobalObject& aGlobal, const nsAString& aLabel) {
StringMethod(aGlobal, aLabel, Sequence<JS::Value>(), MethodCount,
u"count"_ns);
}
/* static */
void Console::CountReset(const GlobalObject& aGlobal, const nsAString& aLabel) {
StringMethod(aGlobal, aLabel, Sequence<JS::Value>(), MethodCountReset,
u"countReset"_ns);
}
namespace {
void StackFrameToStackEntry(JSContext* aCx, nsIStackFrame* aStackFrame,
ConsoleStackEntry& aStackEntry) {
MOZ_ASSERT(aStackFrame);
aStackFrame->GetFilename(aCx, aStackEntry.mFilename);
aStackEntry.mSourceId = aStackFrame->GetSourceId(aCx);
aStackEntry.mLineNumber = aStackFrame->GetLineNumber(aCx);
aStackEntry.mColumnNumber = aStackFrame->GetColumnNumber(aCx);
aStackFrame->GetName(aCx, aStackEntry.mFunctionName);
nsString cause;
aStackFrame->GetAsyncCause(aCx, cause);
if (!cause.IsEmpty()) {
aStackEntry.mAsyncCause.Construct(cause);
}
}
void ReifyStack(JSContext* aCx, nsIStackFrame* aStack,
nsTArray<ConsoleStackEntry>& aRefiedStack) {
nsCOMPtr<nsIStackFrame> stack(aStack);
while (stack) {
ConsoleStackEntry& data = *aRefiedStack.AppendElement();
StackFrameToStackEntry(aCx, stack, data);
nsCOMPtr<nsIStackFrame> caller = stack->GetCaller(aCx);
if (!caller) {
caller = stack->GetAsyncCaller(aCx);
}
stack.swap(caller);
}
}
} // anonymous namespace
// Queue a call to a console method. See the CALL_DELAY constant.
/* static */
void Console::Method(const GlobalObject& aGlobal, MethodName aMethodName,
const nsAString& aMethodString,
const Sequence<JS::Value>& aData) {
RefPtr<Console> console = GetConsole(aGlobal);
if (!console) {
return;
}
console->MethodInternal(aGlobal.Context(), aMethodName, aMethodString, aData);
}
void Console::MethodInternal(JSContext* aCx, MethodName aMethodName,
const nsAString& aMethodString,
const Sequence<JS::Value>& aData) {
if (!ShouldProceed(aMethodName)) {
return;
}
AssertIsOnOwningThread();
ConsoleCommon::ClearException ce(aCx);
RefPtr<ConsoleCallData> callData =
new ConsoleCallData(aMethodName, aMethodString, this);
if (!StoreCallData(aCx, callData, aData)) {
return;
}
OriginAttributes oa;
if (NS_IsMainThread()) {
if (mGlobal) {
// Save the principal's OriginAttributes in the console event data
// so that we will be able to filter messages by origin attributes.
nsCOMPtr<nsIScriptObjectPrincipal> sop = do_QueryInterface(mGlobal);
if (NS_WARN_IF(!sop)) {
return;
}
nsCOMPtr<nsIPrincipal> principal = sop->GetPrincipal();
if (NS_WARN_IF(!principal)) {
return;
}
oa = principal->OriginAttributesRef();
callData->SetAddonId(principal);
#ifdef DEBUG
if (!principal->IsSystemPrincipal()) {
nsCOMPtr<nsIWebNavigation> webNav = do_GetInterface(mGlobal);
if (webNav) {
nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(webNav);
MOZ_ASSERT(loadContext);
bool pb;
if (NS_SUCCEEDED(loadContext->GetUsePrivateBrowsing(&pb))) {
MOZ_ASSERT(pb == !!oa.mPrivateBrowsingId);
}
}
}
#endif
}
} else if (WorkletThread::IsOnWorkletThread()) {
nsCOMPtr<WorkletGlobalScope> global = do_QueryInterface(mGlobal);
MOZ_ASSERT(global);
oa = global->Impl()->OriginAttributesRef();
} else {
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
oa = workerPrivate->GetOriginAttributes();
}
callData->SetOriginAttributes(oa);
JS::StackCapture captureMode =
ShouldIncludeStackTrace(aMethodName)
? JS::StackCapture(JS::MaxFrames(DEFAULT_MAX_STACKTRACE_DEPTH))
: JS::StackCapture(JS::FirstSubsumedFrame(aCx));
nsCOMPtr<nsIStackFrame> stack = CreateStack(aCx, std::move(captureMode));
if (stack) {
callData->mTopStackFrame.emplace();
StackFrameToStackEntry(aCx, stack, *callData->mTopStackFrame);
}
if (NS_IsMainThread()) {
callData->mStack = stack;
} else {
// nsIStackFrame is not threadsafe, so we need to snapshot it now,
// before we post our runnable to the main thread.
callData->mReifiedStack.emplace();
ReifyStack(aCx, stack, *callData->mReifiedStack);
}
DOMHighResTimeStamp monotonicTimer;
// Monotonic timer for 'time', 'timeLog' and 'timeEnd'
if ((aMethodName == MethodTime || aMethodName == MethodTimeLog ||
aMethodName == MethodTimeEnd || aMethodName == MethodTimeStamp) &&
!MonotonicTimer(aCx, aMethodName, aData, &monotonicTimer)) {
return;
}
if (aMethodName == MethodTime && !aData.IsEmpty()) {
callData->mStartTimerStatus =
StartTimer(aCx, aData[0], monotonicTimer, callData->mStartTimerLabel,
&callData->mStartTimerValue);
}
else if (aMethodName == MethodTimeEnd && !aData.IsEmpty()) {
callData->mLogTimerStatus =
LogTimer(aCx, aData[0], monotonicTimer, callData->mLogTimerLabel,
&callData->mLogTimerDuration, true /* Cancel timer */);
}
else if (aMethodName == MethodTimeLog && !aData.IsEmpty()) {
callData->mLogTimerStatus =
LogTimer(aCx, aData[0], monotonicTimer, callData->mLogTimerLabel,
&callData->mLogTimerDuration, false /* Cancel timer */);
}
else if (aMethodName == MethodCount) {
callData->mCountValue = IncreaseCounter(aCx, aData, callData->mCountLabel);
if (!callData->mCountValue) {
return;
}
}
else if (aMethodName == MethodCountReset) {
callData->mCountValue = ResetCounter(aCx, aData, callData->mCountLabel);
if (callData->mCountLabel.IsEmpty()) {
return;
}
}
// Before processing this CallData differently, it's time to call the dump
// function.
if (aMethodName == MethodTrace || aMethodName == MethodAssert) {
MaybeExecuteDumpFunction(aCx, aMethodString, aData, stack);
} else if ((aMethodName == MethodTime || aMethodName == MethodTimeEnd) &&
!aData.IsEmpty()) {
MaybeExecuteDumpFunctionForTime(aCx, aMethodName, aMethodString,
monotonicTimer, aData[0]);
} else {
MaybeExecuteDumpFunction(aCx, aMethodString, aData, nullptr);
}
if (NS_IsMainThread()) {
if (mInnerID) {
callData->SetIDs(mOuterID, mInnerID);
} else if (!mPassedInnerID.IsEmpty()) {
callData->SetIDs(u"jsm"_ns, mPassedInnerID);
} else {
nsAutoString filename;
if (callData->mTopStackFrame.isSome()) {
filename = callData->mTopStackFrame->mFilename;
}
callData->SetIDs(u"jsm"_ns, filename);
}
GetOrCreateMainThreadData()->ProcessCallData(aCx, callData, aData);
// Just because we don't want to expose
// retrieveConsoleEvents/setConsoleEventHandler to main-thread, we can
// cleanup the mCallDataStorage:
UnstoreCallData(callData);
return;
}
if (WorkletThread::IsOnWorkletThread()) {
RefPtr<ConsoleCallDataWorkletRunnable> runnable =
ConsoleCallDataWorkletRunnable::Create(aCx, this, callData, aData);
if (!runnable) {
return;
}
NS_DispatchToMainThread(runnable);
return;
}
// We do this only in workers for now.
NotifyHandler(aCx, aData, callData);
if (StaticPrefs::dom_worker_console_dispatch_events_to_main_thread()) {
RefPtr<ConsoleCallDataWorkerRunnable> runnable =
new ConsoleCallDataWorkerRunnable(this, callData);
Unused << NS_WARN_IF(!runnable->Dispatch(aCx, aData));
}
}
MainThreadConsoleData* Console::GetOrCreateMainThreadData() {
AssertIsOnOwningThread();
if (!mMainThreadData) {
mMainThreadData = new MainThreadConsoleData();
}
return mMainThreadData;
}
// We store information to lazily compute the stack in the reserved slots of
// LazyStackGetter. The first slot always stores a JS object: it's either the
// JS wrapper of the nsIStackFrame or the actual reified stack representation.
// The second slot is a PrivateValue() holding an nsIStackFrame* when we haven't
// reified the stack yet, or an UndefinedValue() otherwise.
enum { SLOT_STACKOBJ, SLOT_RAW_STACK };
bool LazyStackGetter(JSContext* aCx, unsigned aArgc, JS::Value* aVp) {
JS::CallArgs args = CallArgsFromVp(aArgc, aVp);
JS::Rooted<JSObject*> callee(aCx, &args.callee());
JS::Value v = js::GetFunctionNativeReserved(&args.callee(), SLOT_RAW_STACK);
if (v.isUndefined()) {
// Already reified.
args.rval().set(js::GetFunctionNativeReserved(callee, SLOT_STACKOBJ));
return true;
}
nsIStackFrame* stack = reinterpret_cast<nsIStackFrame*>(v.toPrivate());
nsTArray<ConsoleStackEntry> reifiedStack;
ReifyStack(aCx, stack, reifiedStack);
JS::Rooted<JS::Value> stackVal(aCx);
if (NS_WARN_IF(!ToJSValue(aCx, reifiedStack, &stackVal))) {
return false;
}
MOZ_ASSERT(stackVal.isObject());
js::SetFunctionNativeReserved(callee, SLOT_STACKOBJ, stackVal);
js::SetFunctionNativeReserved(callee, SLOT_RAW_STACK, JS::UndefinedValue());
args.rval().set(stackVal);
return true;
}
void MainThreadConsoleData::ProcessCallData(
JSContext* aCx, ConsoleCallData* aData,
const Sequence<JS::Value>& aArguments) {
AssertIsOnMainThread();
MOZ_ASSERT(aData);
JS::Rooted<JS::Value> eventValue(aCx);
// We want to create a console event object and pass it to our
// nsIConsoleAPIStorage implementation. We want to define some accessor
// properties on this object, and those will need to keep an nsIStackFrame
// alive. But nsIStackFrame cannot be wrapped in an untrusted scope. And
// further, passing untrusted objects to system code is likely to run afoul of
// Object Xrays. So we want to wrap in a system-principal scope here. But
// which one? We could cheat and try to get the underlying JSObject* of
// mStorage, but that's a bit fragile. Instead, we just use the junk scope,
// with explicit permission from the XPConnect module owner. If you're
// tempted to do that anywhere else, talk to said module owner first.
// aCx and aArguments are in the same compartment.
JS::Rooted<JSObject*> targetScope(aCx, xpc::PrivilegedJunkScope());
if (NS_WARN_IF(!Console::PopulateConsoleNotificationInTheTargetScope(
aCx, aArguments, targetScope, &eventValue, aData, &mGroupStack))) {
return;
}
if (!mStorage) {
mStorage = do_GetService("@mozilla.org/consoleAPI-storage;1");
}
if (!mStorage) {
NS_WARNING("Failed to get the ConsoleAPIStorage service.");
return;
}
nsAutoString innerID;
MOZ_ASSERT(aData->mIDType != ConsoleCallData::eUnknown);
if (aData->mIDType == ConsoleCallData::eString) {
innerID =